Py2.3: Feedback on Sets

[Delaney, Timothy C (Timothy)]

> From: Gary Feldman [mailto:gafStopSpamData at ziplink.stopallspam.net]
> 
> Also, I'd like to see "iterable must be <some type spec>",
> though this is a general flaw in the Python doc and is perhaps
> biased by my C/C++ background where you'd never dream
> of doing a reference manual without explicitly indicating the
> types of every parameter.

"iterable" *is* <some type spec>. If something is "iterable" it has a well-defined interface - specifically:

    iter(iterable)

returns an "iterator", which also has a well-defined interface - specifically that it implements:

    next()
    __iter__() returning self

Tim Delaney